I have heard a few of these rappers have been going to rock instrumentation and considering themselves rockers now... some of it actually doesn't sound terrible. Its kind of an odd concept that a rapper would turn rocker. the vocals are still the rap style stuff but over an electric guitar, drums, and bass...
I agree about the problem with drum tracks sequenced by people with little to no musical background... but that fits into my 90% crap theory... occasionally you may find a singer or whoever programs the beats, that makes interesting rhythms but that is very infrequent.

I wonder if that transition will make the jump from cartoonish programmed instruments to human played instruments. My bet is the decision lays with the producers.